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# If n + k = m, what is the value of k?

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Manager
Joined: 04 Feb 2011
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If n + k = m, what is the value of k? [#permalink]

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08 Mar 2011, 23:07
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If n + k = m, what is the value of k?

(1) n = 10
(2) m + 10 = n
[Reveal] Spoiler: OA
Manager
Joined: 14 Feb 2011
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Re: If n + k = m, what is the value of k? [#permalink]

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08 Mar 2011, 23:13
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Lolaergasheva wrote:
If n + k = m, what is the value of k?
(1) n = 10
(2) m + 10 = n

Statement 1, n=10 gives us 10+k = m, so k can be anything depending on value of m, so insufficient

Statement 2, m+10=n when put in the stem gives us m+10+k=m or k+10 = 0 or K=-10. So, sufficient.

Answer B
Manager
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Re: If n + k = m, what is the value of k? [#permalink]

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22 May 2017, 11:52
We can rephrase the question as if k = n-m

Statement 1

n =10

k = 10-m. Not Sufficient

Statement 2

m+10 = n

We know that ,

k=n-m

Therefore from statement 2 we get k =10 . Sufficient

Option B is the answer.
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Re: If n + k = m, what is the value of k?   [#permalink] 22 May 2017, 11:52
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# If n + k = m, what is the value of k?

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